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| <h1 title="Package" class="title">Package org.apache.logging.log4j.core.util</h1> |
| <div class="docSummary"> |
| <div class="block">Log4j 2 helper classes.</div> |
| </div> |
| <p>See: <a href="#package.description">Description</a></p> |
| </div> |
| <div class="contentContainer"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Interface Summary table, listing interfaces, and an explanation"> |
| <caption><span>Interface Summary</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Interface</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/AuthorizationProvider.html" title="interface in org.apache.logging.log4j.core.util">AuthorizationProvider</a></td> |
| <td class="colLast"> |
| <div class="block">Interface to be implemented to add an Authorization header to an HTTP request.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Builder.html" title="interface in org.apache.logging.log4j.core.util">Builder</a><T></td> |
| <td class="colLast"> |
| <div class="block">A type of builder that can be used to configure and create a instances using a Java DSL instead of |
| through a configuration file.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Cancellable.html" title="interface in org.apache.logging.log4j.core.util">Cancellable</a></td> |
| <td class="colLast"> |
| <div class="block">Interface to cancel a Runnable callback.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Clock.html" title="interface in org.apache.logging.log4j.core.util">Clock</a></td> |
| <td class="colLast"> |
| <div class="block">Provides the time stamp used in log events.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/FileWatcher.html" title="interface in org.apache.logging.log4j.core.util">FileWatcher</a></td> |
| <td class="colLast"> |
| <div class="block">Watches for changes in a <a href="https://docs.oracle.com/javase/8/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io"><code>File</code></a> and performs an action when the file is modified.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/NanoClock.html" title="interface in org.apache.logging.log4j.core.util">NanoClock</a></td> |
| <td class="colLast"> |
| <div class="block">Provides the high-resolution time stamp used in log events.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/PasswordDecryptor.html" title="interface in org.apache.logging.log4j.core.util">PasswordDecryptor</a></td> |
| <td class="colLast"> |
| <div class="block">Decrypt passwords.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/SecretKeyProvider.html" title="interface in org.apache.logging.log4j.core.util">SecretKeyProvider</a></td> |
| <td class="colLast"> |
| <div class="block">Factory class to provide a <a href="https://docs.oracle.com/javase/8/docs/api/javax/crypto/SecretKey.html?is-external=true" title="class or interface in javax.crypto"><code>SecretKey</code></a> instance.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/ShutdownCallbackRegistry.html" title="interface in org.apache.logging.log4j.core.util">ShutdownCallbackRegistry</a></td> |
| <td class="colLast"> |
| <div class="block">Registry used for Runnable shutdown callback instances.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Watcher.html" title="interface in org.apache.logging.log4j.core.util">Watcher</a></td> |
| <td class="colLast"> |
| <div class="block">Watches for changes in a Source and performs an action when it is modified.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/WatchEventService.html" title="interface in org.apache.logging.log4j.core.util">WatchEventService</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| <li class="blockList"> |
| <table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Class Summary table, listing classes, and an explanation"> |
| <caption><span>Class Summary</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/AbstractWatcher.html" title="class in org.apache.logging.log4j.core.util">AbstractWatcher</a></td> |
| <td class="colLast"> |
| <div class="block">Watcher for configuration files.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/AbstractWatcher.ReconfigurationRunnable.html" title="class in org.apache.logging.log4j.core.util">AbstractWatcher.ReconfigurationRunnable</a></td> |
| <td class="colLast"> |
| <div class="block">Helper class for triggering a reconfiguration in a background thread.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/ArrayUtils.html" title="class in org.apache.logging.log4j.core.util">ArrayUtils</a></td> |
| <td class="colLast"> |
| <div class="block">Copied from Apache Commons Lang (including the <code>@since</code> tags.)</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Assert.html" title="class in org.apache.logging.log4j.core.util">Assert</a></td> |
| <td class="colLast"> |
| <div class="block">Utility class providing common validation logic.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/BasicAuthorizationProvider.html" title="class in org.apache.logging.log4j.core.util">BasicAuthorizationProvider</a></td> |
| <td class="colLast"> |
| <div class="block">Provides the Basic Authorization header to a request.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Booleans.html" title="class in org.apache.logging.log4j.core.util">Booleans</a></td> |
| <td class="colLast"> |
| <div class="block">Boolean helpers.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/CachedClock.html" title="class in org.apache.logging.log4j.core.util">CachedClock</a></td> |
| <td class="colLast"> |
| <div class="block">Implementation of the <code>Clock</code> interface that tracks the time in a |
| private long field that is updated by a background thread once every |
| millisecond.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/ClockFactory.html" title="class in org.apache.logging.log4j.core.util">ClockFactory</a></td> |
| <td class="colLast"> |
| <div class="block">Factory for <code>Clock</code> objects.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Closer.html" title="class in org.apache.logging.log4j.core.util">Closer</a></td> |
| <td class="colLast"> |
| <div class="block">Closes resources.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/CloseShieldOutputStream.html" title="class in org.apache.logging.log4j.core.util">CloseShieldOutputStream</a></td> |
| <td class="colLast"> |
| <div class="block">A delegating OutputStream that does not close its delegate.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/CloseShieldWriter.html" title="class in org.apache.logging.log4j.core.util">CloseShieldWriter</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/CoarseCachedClock.html" title="class in org.apache.logging.log4j.core.util">CoarseCachedClock</a></td> |
| <td class="colLast"> |
| <div class="block">This Clock implementation is similar to CachedClock.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Constants.html" title="class in org.apache.logging.log4j.core.util">Constants</a></td> |
| <td class="colLast"> |
| <div class="block">Log4j Constants.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/CronExpression.html" title="class in org.apache.logging.log4j.core.util">CronExpression</a></td> |
| <td class="colLast"> |
| <div class="block">Provides a parser and evaluator for unix-like cron expressions.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/CyclicBuffer.html" title="class in org.apache.logging.log4j.core.util">CyclicBuffer</a><T></td> |
| <td class="colLast"> |
| <div class="block">A bounded buffer containing elements of type T.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/DefaultShutdownCallbackRegistry.html" title="class in org.apache.logging.log4j.core.util">DefaultShutdownCallbackRegistry</a></td> |
| <td class="colLast"> |
| <div class="block">ShutdownRegistrationStrategy that simply uses <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Runtime.html?is-external=true#addShutdownHook-java.lang.Thread-" title="class or interface in java.lang"><code>Runtime.addShutdownHook(Thread)</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/DummyNanoClock.html" title="class in org.apache.logging.log4j.core.util">DummyNanoClock</a></td> |
| <td class="colLast"> |
| <div class="block">Implementation of the <code>NanoClock</code> interface that always returns a fixed value.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/ExecutorServices.html" title="class in org.apache.logging.log4j.core.util">ExecutorServices</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/FileUtils.html" title="class in org.apache.logging.log4j.core.util">FileUtils</a></td> |
| <td class="colLast"> |
| <div class="block">File utilities.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Integers.html" title="class in org.apache.logging.log4j.core.util">Integers</a></td> |
| <td class="colLast"> |
| <div class="block">Helps deal with integers.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/IOUtils.html" title="class in org.apache.logging.log4j.core.util">IOUtils</a></td> |
| <td class="colLast"> |
| <div class="block">Copied from Apache Commons IO revision 1686747.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/JndiCloser.html" title="class in org.apache.logging.log4j.core.util">JndiCloser</a></td> |
| <td class="colLast"> |
| <div class="block">Helper class for closing JNDI resources.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/JsonUtils.html" title="class in org.apache.logging.log4j.core.util">JsonUtils</a></td> |
| <td class="colLast"> |
| <div class="block">This class is borrowed from <a href="https://github.com/FasterXML/jackson-core">Jackson</a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/KeyValuePair.html" title="class in org.apache.logging.log4j.core.util">KeyValuePair</a></td> |
| <td class="colLast"> |
| <div class="block">Key/Value pair configuration item.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/KeyValuePair.Builder.html" title="class in org.apache.logging.log4j.core.util">KeyValuePair.Builder</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Loader.html" title="class in org.apache.logging.log4j.core.util">Loader</a></td> |
| <td class="colLast"> |
| <div class="block">Load resources (or images) from various sources.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Log4jThread.html" title="class in org.apache.logging.log4j.core.util">Log4jThread</a></td> |
| <td class="colLast"> |
| <div class="block">Prefixes thread names with <code>"Log4j2-"</code>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Log4jThreadFactory.html" title="class in org.apache.logging.log4j.core.util">Log4jThreadFactory</a></td> |
| <td class="colLast"> |
| <div class="block">Creates <a href="../../../../../../org/apache/logging/log4j/core/util/Log4jThread.html" title="class in org.apache.logging.log4j.core.util"><code>Log4jThread</code></a>s.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/NameUtil.html" title="class in org.apache.logging.log4j.core.util">NameUtil</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/NetUtils.html" title="class in org.apache.logging.log4j.core.util">NetUtils</a></td> |
| <td class="colLast"> |
| <div class="block">Networking-related convenience methods.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/NullOutputStream.html" title="class in org.apache.logging.log4j.core.util">NullOutputStream</a></td> |
| <td class="colLast"> |
| <div class="block">Writes all data to the famous <b>/dev/null</b>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/ObjectArrayIterator.html" title="class in org.apache.logging.log4j.core.util">ObjectArrayIterator</a><E></td> |
| <td class="colLast"> |
| <div class="block">An <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util"><code>Iterator</code></a> over an array of objects.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/OptionConverter.html" title="class in org.apache.logging.log4j.core.util">OptionConverter</a></td> |
| <td class="colLast"> |
| <div class="block">A convenience class to convert property values to specific types.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Patterns.html" title="class in org.apache.logging.log4j.core.util">Patterns</a></td> |
| <td class="colLast"> |
| <div class="block">Pattern strings used throughout Log4j.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/ReflectionUtil.html" title="class in org.apache.logging.log4j.core.util">ReflectionUtil</a></td> |
| <td class="colLast"> |
| <div class="block">Utility class for performing common reflective operations.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/SetUtils.html" title="class in org.apache.logging.log4j.core.util">SetUtils</a></td> |
| <td class="colLast"> |
| <div class="block">Set-related convenience methods.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Source.html" title="class in org.apache.logging.log4j.core.util">Source</a></td> |
| <td class="colLast"> |
| <div class="block">Represents the source for the logging configuration.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/StringBuilderWriter.html" title="class in org.apache.logging.log4j.core.util">StringBuilderWriter</a></td> |
| <td class="colLast"> |
| <div class="block"><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Writer.html?is-external=true" title="class or interface in java.io"><code>Writer</code></a> implementation that outputs to a <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang"><code>StringBuilder</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/StringEncoder.html" title="class in org.apache.logging.log4j.core.util">StringEncoder</a></td> |
| <td class="colLast"> |
| <div class="block">Encodes Strings to bytes.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/SystemClock.html" title="class in org.apache.logging.log4j.core.util">SystemClock</a></td> |
| <td class="colLast"> |
| <div class="block">Implementation of the <code>Clock</code> interface that returns the system time.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/SystemMillisClock.html" title="class in org.apache.logging.log4j.core.util">SystemMillisClock</a></td> |
| <td class="colLast"> |
| <div class="block">Implementation of the <code>Clock</code> interface that returns the system time in millisecond granularity.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/SystemNanoClock.html" title="class in org.apache.logging.log4j.core.util">SystemNanoClock</a></td> |
| <td class="colLast"> |
| <div class="block">Implementation of the <code>NanoClock</code> interface that returns the system nano time.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Throwables.html" title="class in org.apache.logging.log4j.core.util">Throwables</a></td> |
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| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/Transform.html" title="class in org.apache.logging.log4j.core.util">Transform</a></td> |
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| <td class="colFirst"><a href="../../../../../../org/apache/logging/log4j/core/util/ExtensionLanguageMapping.html" title="enum in org.apache.logging.log4j.core.util">ExtensionLanguageMapping</a></td> |
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